ORCID Profile
0000-0001-6538-3995
Current Organisation
Shandong University
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Publisher: MDPI AG
Date: 07-05-2023
DOI: 10.3390/MA16093577
Abstract: Zinc hydroxyfluoride (ZnOHF) is a newly found resistive semiconductor used as a gas-sensing material with excellent selectivity to NO2 because of its unique energy band structure. In this paper, Al3+ doping and UV radiation were used to further improve the gas-sensing performance of ZnOHF. The optimized 0.5 at.% Al-ZnOHF s le exhibits improved sensitivity to 10 ppm NO2 at a lower temperature (100 °C) under UV assistance, as well as a short response/recovery time (35 s/96 s). The gas-sensing mechanism demonstrates that Al3+ doping increases electron concentration and promotes electron transfer of the nanorods by reducing the bandgap of ZnOHF, and the photogenerated electrons and holes with high activity under UV irradiation provide new reaction routes in the gas adsorption and desorption process, effectively promoting the gas-sensing process. The synergistic effect of Al3+ and UV radiation contribute to the enhanced performance of Al-ZnOHF.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0DT01242D
Abstract: Polypyrrole-coated Fe 2 O 3 nanotubes constructed from nanoneedles have been fabricated on nickel foam with excellent performance as anodes for supercapacitors.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9QI01259A
Abstract: Carbon-based materials derived from metal–organic frameworks (MOFs) have drawn increasing research attention for high-performance electromagnetic wave absorption due to their unique microstructure.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9TC05852D
Abstract: Flower-like heterogeneous Co/MnO@C composites were facilely synthesized for highly efficient electromagnetic wave absorption. The effect of Co contents on the electromagnetic performance and the absorption mechanism was thoroughly investigated.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0QI00730G
Abstract: A Co 2 V 2 O 7 /G composite with MOF-derived hollow Co 2 V 2 O 7 nanocages uniformly distributed on graphene exhibits excellent electrochemical performance for supercapacitors.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2TA00933A
Abstract: This work successfully encapsulates Ir nanoparticles of ca. 1.5 nm into UiO-66 as highly active catalysts for photo-thermal catalytic CO 2 methanation under mild conditions.
Publisher: Elsevier BV
Date: 07-2022
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0TC03750H
Abstract: The sensing mechanisms and effective strategies for enhancing the formaldehyde detection performance of metal oxide semiconductors have been reviewed.
Publisher: MDPI AG
Date: 19-01-2023
DOI: 10.3390/S23031163
Abstract: Methane (CH4), as the main component of natural gas and coal mine gas, is widely used in daily life and industrial processes and its leakage always causes undesirable misadventures. Thus, the rapid detection of low concentration methane is quite necessary. However, due to its robust chemical stability resulting from the strong tetrahedral-symmetry structure, the methane molecules are usually chemically inert to the sensing layers in detectors, making the rapid and efficient alert a big challenge. In this work, palladium nanoparticles (Pd NPs) embedded indium oxide porous hollow tubes (In2O3 PHTs) were successfully synthesized using Pd@MIL-68 (In) MOFs as precursors. All In2O3-based s les derived from Pd@MIL-68 (In) MOFs inherited the morphology of the precursors and exhibited the feature of hexagonal hollow tubes with porous architecture. The gas-sensing performances to 5000 ppm CH4 were evaluated and it was found that Pd@In2O3-2 gave the best response (Ra/Rg = 23.2) at 370 °C, which was 15.5 times higher than that of pristine-In2O3 sensors. In addition, the sensing materials also showed superior selectivity against interfering gases and a rather short response/recovery time of 7 s/5 s. The enhancement in sensing performances of Pd@In2O3-2 could be attributed to the large surface area, rich porosity, abundant oxygen vacancies and the catalytic function of Pd NPs.
Publisher: Elsevier BV
Date: 02-2023
Publisher: American Chemical Society (ACS)
Date: 21-01-2022
No related grants have been discovered for Zhou Wang.